Documentation: iio-trig-sysfs: Add remove_trigger attribute ABI

This patch adds the documentation ABI for the remove_trigger
attribute, provided by the iio-trig-sysfs stand-alone driver.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs b/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs
index 76698d2..04ac623 100644 (file)
--- a/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs
+++ b/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs
@@ -29,3 +29,14 @@ Description:
                into the associated file, which will serve as the id of the
                trigger. If the trigger with the specified id is already present
                in the system, an invalid argument message will be returned.
+
+What:          /sys/bus/iio/devices/iio_sysfs_trigger/remove_trigger
+KernelVersion: 2.6.39
+Contact:       linux-iio@vger.kernel.org
+Description:
+               This attribute is used to unregister and delete a previously
+               created trigger from the list of available triggers. In order to
+               achieve this, one should write a positive integer into the
+               associated file, representing the id of the trigger that needs
+               to be removed. If the trigger can't be found, an invalid
+               argument message will be returned to the user.